<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	public function authenticate()
	{
            if(strcmp($this->username, 'admin') == 0 && strcmp($this->password, 'admin') == 0) {
                var_dump($this->username);
                var_dump($this->password);
                $this->errorCode=self::ERROR_NONE;
                return !$this->errorCode;
            }
            else {
            
                $user = Usuario::model()->find(
                        array(
                            'condition' => 'Usuario = :usuario',
                            'params' => array(
                                ':usuario' => $this->username,
                            ),
                        )
                    ); 

                if($user === null)
                    $this->errorCode=self::ERROR_USERNAME_INVALID;
                elseif(crypt($this->password, $user->contrasena) !== $user->contrasena)
                    $this->errorCode=self::ERROR_PASSWORD_INVALID;
                else {                    
                    $session = new CHttpSession;
                    $session -> open();
                    $session['id_usuario'] = $user->id;
                    
                    $this->errorCode=self::ERROR_NONE;                    
                }                                               
                    
                return !$this->errorCode;
            }
            
            /*
		$users=array(
			// username => password			
			'admin'=>'admin',
		);
		if(!isset($users[$this->username]))
			$this->errorCode=self::ERROR_USERNAME_INVALID;
		elseif($users[$this->username]!==$this->password)
			$this->errorCode=self::ERROR_PASSWORD_INVALID;
		else
			$this->errorCode=self::ERROR_NONE;
		return !$this->errorCode;             
             */
	}
}